window two-way intercom DS-989 microphone adopts detachable design, the microphone also uses a halo when working, full of advanced sense, and the microphone coil has been upgraded, the anti-interference ability is stronger, to avoid screaming at the same time, but also to ensure that the sound is more clear and natural, and the sound quality is better.
Window two-way walkie-Talkie DS-989, 4-PIN interface is more firm and not easy to fall off, in addition to support recording function, you can also connect external microphone devices.
Window two-way intercom DS-989 is suitable for the medical field, bank window, hospital window, post office window, securities window, embassy visa office, securities company, scenic ticket office, station, restaurant and other places, Deshun, so that communication is more convenient.